JP5208010B2 - clock - Google Patents

Description

  The present invention relates to a watch such as a wristwatch or a pocket watch having a rotatable bezel.

  The bezel has a ring shape and is attached to the upper outer periphery of the cylinder so as to be rotatable in the circumferential direction of the cylinder. The bezel is rotated by the user and stopped at an arbitrary position. By pointing the scale of the bezel with the long hand of the wristwatch, for example, the elapsed time since the rotation of the bezel can be confirmed. In order to ensure the reliability of such confirmation, a device for holding the bezel so as not to move at an arbitrary rotational position is employed.

  As a contrivance, an internal gear-like tooth portion is formed on the barrel, and a locking member made of a leaf spring having a locking portion is provided on the bezel, and the locking portion is made to move to the barrel by the urging force of the locking member. The bezel is made to be prohibited from being rotated at an arbitrary rotational position by engaging with the tooth portion, and the pressing member that presses and moves the locking portion to remove the locking portion from the tooth portion is a bezel. The prior art attached to is known (for example, refer to Patent Document 1).

  As another contrivance, a depression member having a slanted push-up surface is formed and a single operation member that is pushed back by a spring is provided so as to be able to be pushed into the body, and a click member that is biased upward by another spring and There is a conventional technique in which a stopper member that is brought into contact with and separated from the lower end of the click member as it enters and leaves the depression is provided on the body, and the upper end portion of the click member is engaged with and disengaged from the click groove provided on the back surface of the bezel as the operation member moves. It is known (for example, refer to Patent Document 2).

  In the technique described in Patent Document 2, when the operation member is pushed back by a spring, the stopper member is detached from the depressed portion and is sandwiched between the outer periphery of the operation member and the click member, and the click member is clicked. Since it is engaged with the groove, rotation of the bezel is prohibited. When the operation member is pushed in, the stopper member enters the depression and the click member can be moved in the axial direction, so that the bezel can be rotated.

JP 2005-326280 A JP 2008-128880 A

  Each of the prior arts includes a single push button (a press member in Patent Document 1 and an operation member in Patent Document 2), and the push button is pushed by a user to allow the bezel to rotate. is there. In other words, the configuration is such that the rotation of the bezel is prohibited at one place.

  For this reason, when a wristwatch is in contact with a single push button while carrying the watch, the bezel may be inadvertently rotated at that time.

  As described above, according to the prior art, there is a problem that the reliability of preventing the bezel member set at a desired rotation position from being inadvertently rotated is low.

  In order to solve the above-mentioned problems, the present invention is to store at least about 180 ° in the circumferential direction of one member of the body member and one of the bezel members rotatably attached to the body member. A groove, a pair of through portions that are continuous with the storage groove at a position approximately 180 ° apart and open on the outer periphery of the one member, and continuous with the through portions from the center side of the one member. A pair of relief grooves that open to the mating surfaces of the two members are provided, and a number of engagement grooves arranged in a ring shape in the circumferential direction of the other member are provided on the other member so as to face the storage groove, A ring-shaped receiving groove which is surrounded by the engaging grooves and is continuous with each engaging groove is provided in the other member, and the lock which holds the bezel member against the body member so as not to move at an arbitrary rotational position. The one of the members The lock member is attached to the member, and the lock member is an arcuate spring portion housed in the housing groove. The lock member protrudes in a direction away from the spring portion, penetrates the through portion, and is pushed from the outside of the one member. A pair of push button portions, and a stopper that is provided on the spring portion and is engaged with the engagement groove and is released from the engagement groove and received in the receiving groove when the push button portion is pushed in It has the part.

  In the present invention, one of the body member and the bezel member refers to the bezel member when the other member is the body member, and refers to the body member when the other member is the bezel member. On the contrary, when one member is a bezel member, the other member is a body member, and when one member is a body member, the other member is a bezel member. In the present invention, the technical means that the storage groove extends approximately 180 ° and the pair of through portions are opened at positions separated by approximately 180 ° is an obstacle to pushing the pair of push button portions toward each other. This is an implementation means for arranging the pair of push button portions in such a positional relationship that does not occur, and the angle is preferably in the range of 180 ° ± 15 °, more preferably 180 °. In the present invention, the mating surface of both members refers to the surface that contacts the watch in the thickness direction.

  In order to rotate the bezel member in the present invention, first, the user holds the pair of push button portions of the lock member against each other against the spring portion of the lock member so that the user grasps the bezel member or the trunk member with the thumb and forefinger. By pushing in the direction, the pair of stopper portions of the lock member are moved to the escape groove and the receiving groove and removed from the engagement grooves provided in the bezel member or the trunk member. Accordingly, the bezel member that has been released from being held (locked) with respect to the body member can be rotated at the next rotation position by rotating the bezel member. Finally, by releasing the push-in operation, as the spring part tries to return to its original state by its elastic force, the pair of push button parts protrude from the through part and at the same time the pair of stopper parts enter the engaging groove. Engaged. Thereby, the bezel member can be locked at the arbitrary rotational position.

  As described above, in order to release the lock of the bezel member with respect to the body member, it is necessary to push in both of the pair of push button portions separated by about 180 °. Therefore, when the timepiece of the present invention is carried, there is a low probability that both of the pair of push button portions are carelessly pressed from the outside. At the same time, even if one of the push button parts is pushed in, the engagement between the stopper part on the other push button part side and the engagement groove is maintained, so that the bezel member set at a desired rotational position is not prepared. Rotation can be suppressed with high reliability.

  In a preferred embodiment of the present invention, the one member is the bezel member, and the other member is the body member.

  In this preferred embodiment, the pair of stopper portions of the lock member attached to the bezel member can be pushed and operated with one hand to release the lock of the bezel member with respect to the body member, and at the same time, the bezel member can be gripped. Subsequently, the bezel member can be rotated. Therefore, when the watch is a wristwatch, the bezel member can be operated with one hand while carrying the watch (the watch is worn on the wrist), which is convenient in handling.

  In a preferred embodiment of the present invention, a click ball engaged with and disengaged from the engagement groove and a click stopper having a click spring for pressing the ball against the engagement groove are attached to the one member. Yes.

  In this preferred embodiment, the click ball of the click stopper is engaged with the engagement groove, whereby the stopper portion of the lock member and the engagement groove can be positioned. Therefore, when the pushing operation force of the push button portion disappears, the stopper portion received in the escape groove and the receiving groove is smoothly engaged with the engaging groove without being caught by the engaging groove by the spring portion of the lock member. Combined, the bezel member can be held in a desired rotational position.

  In a preferred embodiment of the present invention, the click stopper is arranged on the opposite side of the spring portion with a straight line passing through the pair of push button portions as a boundary.

  In this preferred embodiment, it is not necessary to arrange the lock member and the click stopper in the radial direction of the timepiece, so that the timepiece can be prevented from becoming larger in the radial direction.

  In a preferred embodiment of the present invention, the lock member is integrally formed.

  In this preferred embodiment, since the lock member is formed as a single part, there is no need to assemble the member itself.

  In a preferred embodiment of the present invention, the lock member is formed separately from the first part by forming a first part including a spring part and a stopper part integrally formed therewith, and the push button part. It is characterized by being formed with the 2nd components connected to.

  In this preferred embodiment, the spring portion and the pair of push button portions are separate bodies, so that they can be designed according to their functions. Therefore, for example, even if the spring portion is linear, the shape and material of the push button portion can be determined without being restricted by the spring portion.

  In a preferred embodiment of the present invention, the pair of push button portions are arranged off the straight line passing through the crown attached to the trunk member and the center of the trunk member in a state where the bezel member is at the reference position. It is characterized by having.

  In this preferred form, when the bezel member is in the reference position, the bezel member is held in a state in which the numeral “0” is facing 12 o'clock of the timepiece among the markings formed by the numerals attached to the bezel member. The bezel member in this state is in a use standby state.

  In this preferred embodiment, the push button portion and the crown do not overlap vertically when the bezel member is in the reference position, so that the crown does not get in the way when unlocking the bezel member and the crown operation is performed. The push button part does not get in the way.

  According to the timepiece of the present invention, there is an effect that inadvertent rotation of the bezel member set at a desired rotation position can be suppressed with high reliability.

1 is a front view showing a wristwatch according to a first embodiment of the present invention. It is sectional drawing which shows the wristwatch which concerns on 1st Embodiment along the F2-F2 line | wire in FIG. It is sectional drawing which abbreviate | omits the crown around the wristwatch which concerns on 1st Embodiment, and shows it along the F3-F3 line | wire in FIG. 3 is a cross-sectional view showing the entire wristwatch according to the first embodiment along the line F4-F4 in FIG. It is a front view showing the wristwatch concerning a 1st embodiment in the state where the bezel member was removed. It is sectional drawing which shows the bezel member of the wristwatch which concerns on 1st Embodiment with the components attached to it. It is a back view which shows the bezel member of the wristwatch concerning a 1st embodiment with the components attached to it. It is a perspective view which shows the lock member with which the wristwatch which concerns on 1st Embodiment is provided. It is sectional drawing equivalent to FIG. 2 which shows the wristwatch which concerns on 2nd Embodiment of this invention. It is a disassembled perspective view which shows the lock member with which the wristwatch which concerns on 2nd Embodiment is provided. It is sectional drawing equivalent to FIG. 2 which shows the wristwatch which concerns on 3rd Embodiment of this invention.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.

  In FIG. 1 to FIG. 3, reference numeral 11 denotes a portable watch such as a wristwatch. As shown in FIGS. 2 and 3, a built-in component such as a watch movement 13 is provided in a watch exterior body 12 of the wristwatch 11, and a time display portion such as a circular dial 14 is provided. The dial 14 is indicated by a time display hand driven by the timepiece movement 13, specifically, the short hand 15, the long hand 16 and the minute hand 17 shown in FIG. Corresponding to the 3 o'clock time display side of the dial 14, a crown 18 is attached to the watch exterior body 12. The crown 18 is operated, for example, when adjusting the time display hand or the like via the clock movement 13.

  As shown in FIGS. 2 and 3, the watch exterior body 12 includes a body member 21, glass 22, and a back cover 23. The body member 21 is formed in a ring shape from a metal such as stainless steel or titanium or a synthetic resin. The glass 22 that allows the dial 14 to be seen through is liquid-tightly attached to the front portion of the body member 21. The back cover 23 is made of metal or synthetic resin, and is mounted in a liquid-tight manner by closing the back surface of the body member 21.

  As shown in FIG. 5, the body member 21 has an annular portion 21 a that surrounds the dial 14 as viewed from the front, a pair of hooks 24, and another pair of hooks 25. In FIG. 5, the leg 24 is integrally projected from the upper part of the annular part 21 a, and the other leg 25 is integrally projected from the lower part of the annular part 21 a in FIG. 5. An arm mounting member such as is attached.

  As shown in FIGS. 2 and 3, the body member 21 has an upward convex portion 21 b on the front surface portion thereof, and a shoulder portion 21 c that projects outward from the root of the upward convex portion 21 b. The upward convex part 21b is circular, and the glass 22 is attached to the inner peripheral part thereof.

  As shown in FIGS. 2, 3, and 5, the shoulder portion 21 c is provided with a number of engaging grooves 26 and receiving grooves 27 that are open on the upper surface of the shoulder portion 21 c.

  Each engagement groove 26 is formed in a ring shape in the circumferential direction in the annular portion 21 a of the body member 21. These engaging grooves 26 are formed to extend in the radial direction with respect to the center of the body member 21, and the shape of the groove cross section in the direction orthogonal to the extending direction is V-shaped. For this reason, the engaging grooves 26 adjacent to each other in the circumferential direction of the body member 21 are adjacent to each other by forming convex portions having an equilateral triangular cross section therebetween. With the engagement groove 26 having such a structure, when a bezel member 31 described later is rotated to an arbitrary position, the direction is not specified as one direction.

  The receiving groove 27 is formed in a ring shape. The receiving groove 27 is surrounded by a number of engaging grooves 26 arranged in a ring shape. The receiving groove 27 is continuous with the engaging grooves 26 from the center side of the body member 21, specifically, from the upward convex portion 21 b side.

  The receiving groove 27 and the many engaging grooves 26 are both open to the upper surface of the shoulder portion 21 c of the body member 21, that is, the surface (meeting surface) with which the back surface of the bezel member 31 described below is in contact. Therefore, in order to process these grooves, press work can be employed regardless of cutting, and workability with respect to a member having a large number of engagement grooves 26 and receiving grooves 27, that is, in this embodiment, the body member 21 is improved. Is preferable for improving productivity.

  As shown in FIGS. 2 and 3, the bezel member 31 is rotatably attached to the upper outer periphery of the body member 21 so as to cover the upward convex portion 21 b and the shoulder portion 21 c. The bezel member 31 is made of metal or synthetic resin and has a ring shape, and its outer diameter is substantially equal to the outer diameter of the shoulder portion 21c. The bezel member 31 is hooked from below to the engagement convex portion 21d formed along the circumferential direction on the outer periphery of the upward convex portion 21b and is prevented from coming off. A friction ring 32 disposed immediately above the engagement portion is attached to the inner periphery of the bezel member 31.

  As shown in FIG. 1, a mark 33 such as a scale is provided on the surface of the bezel member 31. The sign 33 is a scale corresponding to 60 minutes, for example, and includes numbers “0”, “15”, “30”, and “45” provided every 90 °. The bezel member 31 is normally disposed at the reference position shown in FIG. 1 when the bezel member 31 is not used. In the state where the bezel member 31 is arranged at the reference position, the numeral “0” of the sign 33 indicating 0 minutes coincides with the 12 o'clock of the dial 14.

  The bezel member 31 is provided with a storage groove 34, a pair of through portions 35, and a pair of escape grooves 36.

  The storage groove 34 is provided on the back side portion of the bezel member 31 over at least approximately 180 ° of the bezel member 31, specifically 360 ° as shown in FIGS. 4 and 7. The storage groove 34 is opened on the inner peripheral surface of the bezel member 31 (see FIGS. 2, 3, and 6).

  The pair of through portions 35 are provided approximately 180 °, preferably 180 ° apart from each other so as to face the radial direction of the bezel member 31 (see FIGS. 4 and 7). These push portions 35 are continuous with the storage groove 34 and open to the outer periphery of the bezel member 31.

  The pair of escape grooves 36 are also provided at a distance of approximately 180 °, preferably 180 ° so as to face the radial direction of the bezel member 31 in the same manner as the through portion 35. As shown in FIG. 4, these relief grooves 36 are continuous from the center side of the body member 21, specifically from the upward convex portion 21 b side. At the same time, the escape groove 36 is opened to the lower surface of the bezel member 31, that is, the surface in contact with the shoulder portion 21c. Specifically, as shown in FIG. 2 and FIG. 7, the escape groove 36 is opened on the back surface of the bezel member 31 by notching a part of the back wall portion 31 a that partitions the storage groove 34 from the lower side. . Thereby, the escape groove 36 is also continuous with the storage groove 34. The end portions on the through portion 35 side of these escape grooves 36 are opposed to the engaging grooves 26 as shown in FIGS. In this case, the escape groove 36 faces the groove end located on the center side of the body member 21.

  A lock member 41 is attached to a member provided with the storage groove 34, the through portion 35, and the escape groove 36, in this embodiment, the bezel member 31. As shown in FIG. 8, the lock member 41 includes a spring portion 42, a pair of push button portions 43, and a pair of stopper portions 44. The lock member 41 is made of, for example, a metal integrally molded product. Thereby, since the lock member 41 is formed as one component, there is an advantage that it is not necessary to assemble the member itself.

  The spring portion 42 has an arc shape, for example, a semicircular arc shape extending approximately 180 °, and can be elastically deformed. The pair of push button portions 43 are provided on the spring portion 42 at a distance of approximately 180 °. In this embodiment, the push button portions 43 are provided on both ends of the spring portion 42 and project from the spring portion 42 in a direction away from each other. ing. The pair of stopper portions 44 are also provided on the spring portion 42 at a distance of about 180 °. In the present embodiment, the stopper portions 44 protrude downward from both ends of the spring portion 42 and from the push button portion 43. The distal end portions of these push button portions 43 have a tapered shape and are engaged with and disengaged from the engagement groove 26.

  As shown in FIGS. 4 and 7, the spring portion 42 of the lock member 41 is accommodated in the accommodation groove 34 so as to be in contact with the inner surface 34 a (see FIG. 6) of the accommodation groove 34. The push button portions 43 of the lock member 41 are respectively passed through the through portions 35 and project from the outside of the bezel member 31 so as to be able to be pushed. With the push button portion 43 protruding outside the bezel member 31 in this way, the stopper portion 44 of the lock member 41 protrudes from the back surface of the bezel member 31 through the escape groove 36 and the body member 21. It is engaged with a part of the engaging groove 26. The lock member 41 thus attached to the bezel member 31 is held so as not to rattle when the spring portion 42 is in contact with the inner surface 34a of the storage groove 34 due to elastic deformation of the spring portion 42. ing.

  The pair of push button portions 43 are arranged off the straight line S2 passing through the centers of the crown 18 and the trunk member 21 in a state where the bezel member 31 is arranged at the reference position. Specifically, in a state where the bezel member 31 is disposed at the reference position, as shown in FIG. 4 and the like, a pair of through portions 35, a pair of escape grooves 36, a pair of push button portions 43, and a pair of stopper portions 44 are provided. Are arranged on a straight line S1 passing through 12: 00-6 o'clock of the wristwatch 11.

  According to the arrangement of the push button portion 43 with respect to the crown 18, the push button portion 43 and the crown 18 do not overlap vertically when the bezel member 31 is in the reference position. In addition, there is an advantage that the crown 18 does not get in the way and the push button portion 43 does not get in the way when the crown 18 is operated. Further, in the state where the bezel member 31 is in the reference position, the push button portion 43 is not inadvertently pushed by the user's hand, and the pair of limbs 24 and the pair of limbs 25 There is an advantage that it is possible to prevent the push button unit 43 from being inadvertently pressed due to any object hitting the push button unit 43 from the side where the hooks 24 and 25 are located.

  A click stopper 51 is attached to the bezel member 31. 4 and 7, the click stopper 51 is bounded by a straight line S3 passing through the pair of push button portions 43 (this straight line S3 coincides with a straight line S1 passing through 12: 00-6 o'clock in FIG. 4). Is disposed on the opposite side to the spring portion 42. Accordingly, it is not necessary to arrange the lock member 41, the click stopper 51 provided at a position deviated from the lock member 41, and the wristwatch 11 in the radial direction. For this reason, there is an advantage that the wristwatch 11 can be prevented from becoming large in the radial direction due to the arrangement of the click stopper 51.

  The click stopper 51 includes a ball holder 52, a click ball 53, and a click spring 54 as shown in FIG. The ball holder 52 has a cylindrical shape with the upper end closed and the lower end opened. The click ball 53 is made of a steel ball or the like, is housed in the ball holder 52 so as not to be removed from the lower end opening of the ball holder 52, and can be moved up and down. The click spring 54 is sandwiched between the closed upper end of the ball holder 52 and the click ball 53 and urges the click ball 53 downward.

  The click stopper 51 is disposed by press-fitting the ball holder 52 into a mounting hole 37 provided in the bezel member 31. The click ball 53 of the click stopper 51 is detachably engaged with the engagement groove 26 of the body member 21, and the moderation is reduced each time the bezel member 31 rotates with respect to the body member 21 by a certain angle. Can be given.

  At the same time, the click ball 53 is engaged with the engagement groove 26, whereby the engagement groove 26 can be positioned in the stopper portion 44 of the lock member 41. That is, the bezel member 31 can be positioned in such a relationship that the stopper ball 44 and the engaging groove 26 at a position corresponding thereto can be engaged simultaneously with the click ball 53 engaging with the engaging groove 26 immediately below the click ball 53. Therefore, as the pushing operation force on the push button portion 43 disappears, the spring portion 42 of the lock member 41 is received in the escape groove 36 and the receiving groove 27 when the spring portion 42 returns to its original state by its own elastic force. Since the stopper portion 44 in the raised state is smoothly engaged without being caught by the engagement groove 26 at the corresponding position, there is an advantage that the bezel member 31 can be held at a desired rotational position.

  In order to rotate the bezel member 31 in a portable state in which the wristwatch 11 having the above-described configuration is worn on the user's arm, the following operation may be performed.

  First, as the user grasps the bezel member 31 with the thumb and index finger of one hand, the pair of push button portions 43 of the lock member 41 are passed in a direction approaching each other against the elastic force of the spring portion 42 of the lock member 41. Push-in operation is performed so as to immerse in the part 35. In this case, the spring portion 42 is bent and deformed in the storage groove 34 of the bezel member 31 so that both end portions thereof approach each other. Accordingly, the center of the wristwatch 11 is set so that the pair of stopper portions 44 of the lock member 41 is disengaged from the engaging groove 26 of the body member 21 that has been engaged so far and is received in the escape groove 36 and the receiving groove 27. Moved to the side.

  Therefore, the holding (locking) of the bezel member 31 with respect to the trunk member 21 is released. In this case, the thumb and index finger of one hand that has been unlocked are in a state of gripping the bezel member 31 so as to sandwich it in the radial direction. Therefore, the bezel member 31 can be rotated following the pressing of the pair of push button portions 43.

  As described above, when the bezel member 31 is disposed at an arbitrary rotation position, the unlocking operation of the bezel member 31 with respect to the trunk member 21 and the rotation operation of the bezel member 31 can be performed in one behavior with one hand of the user. As a result, operability can be improved.

  As the bezel member 31 is rotated, the click ball 53 of the click stopper 51 is disengaged from the engaging groove 26 that has been engaged until then, and the bezel member 31 is rotated in the rotational direction of the engaging groove 26. A click (moderation) sensation is provided every time the engaging groove 26 located adjacent to the engaging groove 26 is entered. In this case, since the cross section of the convex portion formed between the adjacent engaging grooves 26 is an equilateral triangle, the bezel member 31 can be rotated in either the clockwise direction or the counterclockwise direction. .

  Therefore, the bezel member 31 can be rotated in a close direction to arrange the bezel member 31 at an arbitrary rotational position. At the same time, even when the bezel member 31 has passed an arbitrary rotational position, the bezel member 31 can be reversely rotated from that position and disposed at an arbitrary rotational position. There is no need to manually rotate the.

  Next, in a state where the bezel member 31 is disposed at an arbitrary rotation position, the hand is released from the bezel member 31 to release the push of the pair of push button portions 43. As a result, the pair of push button portions 43 protrude from the through portion 35 by the elastic force of the spring portion 42. At the same time, the pair of stopper portions 44 are engaged with the engaging grooves 26. Therefore, the bezel member 31 can be locked at the arbitrary rotational position.

  As described above, the wristwatch 11 configured as described above locks the bezel member 31 with respect to the body member 21 by pushing the pair of push button portions 43 of the lock member 41 attached to the bezel member 31 with one hand while carrying the watch. Simultaneously with the release, the bezel member 31 can be grasped and the bezel member 31 can be continuously rotated with the one hand, which is convenient in handling.

  The wristwatch 11 having the above-described configuration needs to push in both the pair of push button portions 43 that are separated by approximately 180 ° in order to release the lock of the bezel member 31 with respect to the trunk member 21 as described above. Therefore, when the wristwatch 11 is carried, there is a low probability that both of the pair of push button parts 43 are carelessly pressed from the outside. At the same time, even when one of the push button portions 43 is pushed in, the engagement between the stopper portion 44 of the other push button portion 43 and the engagement groove 26 is maintained, so that the bezel set at a desired rotational position is maintained. Inadvertent rotation of the member 31 can be suppressed with high reliability while the wristwatch 11 is being carried.

  9 and 10 show a second embodiment of the present invention. The wristwatch 11 of the second embodiment includes the technical matters not shown in FIGS. 9 and 10 except for the technical matter that the lock member 41 is formed of the first component and the pair of second components. Is the same. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in FIG. 10, the first component 41A of the lock member 41 includes a spring portion 42 and stopper portions 44 that are integrally formed at both ends. Locking grooves 45 are formed at both ends of the spring portion 42, respectively. These locking grooves 45 are opened in the direction opposite to the protruding direction of the stopper portion 44.

  The second part 41B of the lock member 41 is made separately from the first part 41A, and forms a push button portion 43. The second part 41B, that is, the push button portion 43 is not a plate shape but is, for example, a columnar shape, and an annular locking groove 46 is formed at one end thereof. As shown in FIG. 9, the first part 41 </ b> A and the second part 41 </ b> B are connected to each other to form a lock member 41 by locking their locking grooves 45 and 46.

  Since the spring part 42 and the pair of push button parts 43 are separate bodies as described above, they can be designed according to their functions. Therefore, for example, even if the spring part 42 is linear, the push button part 43 has a round bar or an irregularly shaped bar (that is, a bar shape other than a round bar) in order to improve the design of the wristwatch 11 and the feeling of pushing operation. Material can be used. At the same time, the push button portion 43 and the spring portion 42 can be formed of different materials.

  The second embodiment is the same as the first embodiment except for the matters described above. Therefore, even in the second embodiment, the problem of the present invention can be solved for the reason already described in the first embodiment.

  FIG. 11 shows a third embodiment of the present invention. In the first and second embodiments, the lock member 41 is attached to one member of the body member 21 and the bezel member 31, for example, the bezel member 31. Conversely, in the third embodiment, one member is attached to the body member. 21 and the technical matter other than the technical matter that the lock member 41 is attached to the body member 21 are the same as the first embodiment including the technical matter not shown in FIG. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the third embodiment, one member of the body member 21 and the bezel member 31, for example, a shoulder groove 21 c of the body member 21, a storage groove 34, a pair of through portions 35 (only one shown), and a pair of escape grooves 36. (Only one is shown). The storage groove 34, the pair of through portions 35, and the pair of escape grooves 36 are all open to the upper surface of the shoulder portion 21 c that is a surface that contacts the back surface of the bezel member 31. The lock member 41 is attached to the shoulder portion 21c through the through portion 35 so as to be movable in the diameter direction of the body member 21.

  In the third embodiment, the other member of the body member 21 and the bezel member 31, for example, the bezel member 31, a large number of engagement grooves 26 arranged in a ring shape, and a ring-shaped receiving member surrounded by them. A groove 27 is provided. The engaging groove 26 and the receiving groove 27 are opened on the lower surface of the bezel member 31 that covers the shoulder portion 21c.

  The third embodiment is the same as the first embodiment except for the matters described above. Therefore, even in the third embodiment, the problem of the present invention can be solved for the same reason as already explained in the first embodiment.

  When the bezel member 31 is rotated in the third embodiment, the pair of push buttons 43 are first pushed in with one hand while the wristwatch 11 is removed from the arm, and the bezel member with respect to the trunk member 21 is operated. Hold the unlocked state of 31 with one hand. Next, the bezel member 31 is grasped with the other hand, the bezel member 31 is rotated to a desired rotation position, and the other hand is separated from the wristwatch 11.

11 ... Watch (clock)
18 ... Crown 21 ... Body member 26 ... Engaging groove 27 ... Receiving groove 31 ... Bezel member 34 ... Storage groove 35 ... Passing part 36 ... Escape groove 41 ... Lock member 42 ... Spring part 43 ... Push button part 44 ... Stopper part 51 ... Click stopper 52 ... Click ball 53 ... Click spring S2 ... A straight line passing through the center of the watch and the crown S3 ... A straight line passing through the pair of push button portions 41A ... First part 41B ... Second part

Claims (4)

One member of the body member and the bezel member rotatably attached to the body member has a storage groove extending at least about 180 ° in the circumferential direction of the one member, and the storage groove at a position approximately 180 ° apart. And a pair of clearance grooves that are continuous from the center side of the one member and open to the mating surface of the two members Respectively,
A plurality of engagement grooves arranged in a ring shape in the circumferential direction of the other member are provided in the other member so as to face the storage groove, and the ring shape is surrounded by these engagement grooves and continues to each engagement groove Is provided in the other member,
A lock member that holds the bezel member so as not to move at an arbitrary rotational position with respect to the body member is attached to the one member,
The locking member is
An arcuate spring portion stored in the storage groove ;
A pair of push button portions projecting from both ends of the spring portion and penetrating the through portion to be pushed from the outside of the one member;
A stopper portion that is provided in the spring portion and is engaged with the engagement groove and is released from the engagement groove and received in the reception groove when the push button portion is pushed in,
A click ball engaged with and disengaged from the engagement groove and a click stopper having a click spring that presses the ball against the engagement groove are attached to the one member.
The timepiece, wherein the click stopper is disposed on the opposite side of the spring portion with a straight line passing through the pair of push button portions as a boundary .   The timepiece according to claim 1, wherein the one member is the bezel member and the other member is the body member. The locking member is
A first part comprising a spring part and the stopper part;
The timepiece according to claim 1 or 2, wherein the timepiece is formed by a pair of second parts connected to both ends of the spring portion . The pair of push button portions are arranged off a straight line passing through a crown attached to the trunk member and a center of the trunk member in a state where the bezel member is at a reference position. The timepiece according to any one of claims 1 to 3 .

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